OPB880T55 Equivalent & Substitute Parts

Part Overview

The OPB880T55 is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This component is classified as obsolete, with 1040 units available in new original stock. The sensor operates as an unamplified optical detector with a 0.125" (3.18mm) sensing distance and through-beam configuration. Due to its obsolete status, equivalent active production alternatives are available that maintain identical electrical and mechanical specifications, enabling direct functional replacement in existing designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB880T55
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Phototransistor
Current - DC Forward (If) (Max)	50 mA
Current - Collector (Ic) (Max)	30 mA
Voltage - Collector Emitter Breakdown (Max)	30 V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the OPB880T55 are qualified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution criteria are:

Sensing Distance: 0.125" (3.18mm)
Sensing Method: Through-Beam
Output Configuration: Phototransistor
Current - DC Forward (If) (Max): 50 mA
Current - Collector (Ic) (Max): 30 mA
Voltage - Collector Emitter Breakdown (Max): 30 V
Operating Temperature: -40°C ~ 85°C
Mounting Type: Chassis Mount
Package / Case: Module, Pre-Wired
Type: Unamplified

All substitute parts listed maintain these identical parameters. The primary distinction between the OPB880T55 and its substitutes is product status and regulatory compliance. The OPB880T55Z represents the direct packaging variant upgrade, while OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z are parametric equivalents from the same manufacturer's active product portfolio.

Parameter Comparison

Part Number	Manufacturer	Sensing Distance	Sensing Method	Output Configuration	If (Max)	Ic (Max)	VCE Breakdown (Max)	Operating Temperature	Mounting Type	Package / Case	Type	Product Status	RoHS Status
OPB880T55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Obsolete	RoHS non-compliant
OPB880T55Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB360N51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB365N11	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB365N51	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB365P55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB370N51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB370N55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB375N51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB380N11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant
OPB380P51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant

Engineering Selection Recommendations

The OPB880T55 is obsolete and no longer in active production. For new designs or component replenishment, OPB880T55Z is the direct successor, offering identical electrical and mechanical specifications with active product status and ROHS3 compliance. This variant is preferred for applications requiring regulatory compliance documentation.

For applications where the specific OPB880T55Z variant is unavailable, the parametric equivalents OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z provide functionally identical performance. All substitute parts maintain the same electrical ratings, sensing distance, through-beam configuration, and operating temperature range. All active substitutes carry ROHS3 compliance status.

Selection among parametric equivalents should be based on inventory availability and packaging requirements, as all parts are electrically and mechanically interchangeable within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can OPB880T55 be directly replaced with OPB880T55Z?

A: Yes. OPB880T55Z is the active production variant of OPB880T55 with identical electrical and mechanical specifications. The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: Are the parametric equivalents (OPB360N51, OPB365 series, OPB370 series, OPB375N51, OPB380 series) functionally identical to OPB880T55?

A: Yes. All listed parametric equivalents maintain identical sensing distance (0.125"), sensing method (through-beam), output configuration (phototransistor), current ratings (If 50 mA max, Ic 30 mA max), voltage rating (30 V max), operating temperature range (-40°C to 85°C), mounting type (chassis mount), and package configuration (module, pre-wired, unamplified).

Q: What is the difference between the OPB880T55 and its substitutes in terms of packaging?

A: The OPB880T55 is supplied in standard packaging, while OPB880T55Z is supplied in bulk packaging. All parametric equivalents are supplied in bulk packaging. The electrical and mechanical specifications remain unchanged across all packaging variants.

Q: Are all substitute parts RoHS compliant?

A: The OPB880T55 is RoHS non-compliant. All active substitutes (OPB880T55Z and all parametric equivalents) are ROHS3 compliant, meeting current regulatory requirements.

Q: Can I use any of the parametric equivalents interchangeably in my application?

A: Yes, within the scope of the specified electrical and mechanical parameters. All substitute parts are qualified for direct functional replacement based on identical sensing distance, sensing method, output configuration, current ratings, voltage rating, operating temperature, mounting type, and package configuration.

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